c.498 - King Fergus Mor leads his Scots
people from Ireland into Pictland and founds the Scottish Kingdom of
Dalriada.

501 - Death of King Fergus Mor of Dalriada.
He is succeeded by his son, Domangart.

c.505 - Death of King Dumnagual Hen of
Strathclyde. His kingdom is possibly divided between his many sons,
although Cedic rises above the others.

507 - Death of King Domangart of Dalriada. He
is succeeded by his son, Comgall.

c.525 - Prince Gabhran mac Domangart of
Dalriada leads a Scottish party east to settle Gowrie, where he marries a
British Princess, Lleian, daughter of King Brychan of Manau Gododdin and
probably niece of King Cedic of Strathclyde.

c.528 - Banishment of the unmarried Princess
(& Saint) Thaney from her father King Loth of Gododdin's Court at
Trapain Law. The birth of her son, St. Kentigern Garthwys, follows soon
afterward at Culross.

c.530 - Death of King Cedic of Strathclyde.
Probable division of his kingdom between his sons, Tutgual, Senyllt &
Serwan. Tutgual takes the Strathclyde homeland, Senyllt probably the area
around Selkirk and Serwan elsewhere.

538 - Probable abdication of King Comgall of
Dalriada in order to enter a monastery. He is succeeded by his brother,
Gabhran.

553 - King Galam Cennaleph of the Picts. He
is succeeded by Bruide ipe Mailcon, whose father had been King of Gwynedd.

c.553 - St. Kentigern Garthwys founds Glasgow
Cathedral adjoining a Christian cemetery established by St. Ninian;
probably at the request of King Tutgual Tutclyd of Strathclyde

c.554 - Death of King Tutgual Tutclyd of
Strathclyde. The kingdom is probably divided between his sons, Morcant
Mwynfawr & Riderch Hael.

c.555 - St. Kentigern Garthwys, Bishop of
Glasgow, tours his diocese and is opposed by King Morcant Mwynfawr of
Lesser Strathclyde.

558 - The eastern settlement of the Dalriadan
Scots in Gowrie are probably expelled by King Bruide ipe Mailcon of the
Picts. Death of King Gabhran of Dalriada, possibly in battle. He is
succeeded by his nephew, Conall mac Comgall. The Scots become subject to
Pictish overlordship.

c.560 - Prince Elidyr of Strathclyde invades
Gwynedd in right of his wife. He tries to expel his brother-in-law, King
Rhun Hir of Gwynedd, at the Battle of the Cadnant Brook, but is killed in
the process. Due to heightened persecution by King Morcant Mwynfawr of
Lesser Strathclyde, St. Kentigern Garthwys flees his Glasgow diocese for
the safety of South Wales, before moving Northwards to Llanelwy (St.
Asaphs).

562 - St. Mo-Luag founds the monastery of
Lismore.

563 - St. Columba travels from Ireland to
Scotland. He establishes a monastery on the Island of Hinba (Jura) and
then moves on to Iona. He is granted the Island by King Conall of Dalriada,
but probably also seeks permission of King Bruide ipe Maelchon of the
Picts to settle on his borders. Columba founds an Abbey on Iona and
becomes a friendly rival of St. Mo-Luag.

564 - St. Comgall of Bangor's monastery on
Tiree is raided by the Picts.

c.565 - King Riderch Hael of Strathclyde
mounts an unsuccessful revenge attack on King Rhun Hir of Gwynedd. Rhun
marches on Strathclyde and reinforces the armies of his half-brother,
Bruide ipe Maelchon, in Pictland. St. Columba visits the Court of King
Bruide ipe Maelchon of the Picts, near Inverness. On the way, he stops at
Airdchartdan (Urquhart) on the banks of Loch Ness, converts a local
chieftain and has an encounter with the famous monster.

568 - Scots chieftains amongst the Cenel
Oengusa and Cenel Loairn on Islay and Seil probably rise up against King
Conall of Dalriada. He overcomes the rebels with the help of the armies of
King Coman Bec of Meath.

569 - Prince Aedan mac Gabhran of Dalriada
establishes himself, in the right of his mother, as King of Manau Gododdin,
with his capital at Eperpuill (Aberfoyle).

c.570-75 - The Northern British Alliance is
forged between the kingdoms of Strathclyde, North Rheged, Bryneich and
Elmet. They fight the Northumbrians at the Battles of Gwen Ystrad and the
Cells of Berwyn.

573 - King Riderch Hael of Strathclyde allies
himself with Kings Peredyr and Gwrgi of Ebrauc (York) and Dunaut Bwr of
the Northern Pennines. They march to claim the fort at Caerlaverock from
King Gwendoleu of Caer-Gwendoleu (Carwinley). The latter is killed in the
Battle of Arthuret and his bard, Myrddin, is forced to flee into the
Caledonian Forest.

574 - Death of King Conall of Dalriada. There
is some dispute over who is his rightful heir, Eogan mac Gabhran or his
brother, Aedan. There is an armed clash at Delgu in Kintyre (either
between rival claimants or against King Baetan mac Cairell of Ulster
trying to assert his overlordship). Although St. Columba favoured Eogan,
he is told in a dream to ordain Aedan as king. Iona is established as the
Royal Church of the Kingdom of the Scots. King Aedan of Dalriada
reluctantly submits to King Baetan mac Cairell of Ulster as his overlord
on Island Magee. St. Kentigern Garthwys leaves his Northern Welsh diocese
of Llanelwy (St. Asaphs) in the hands of St. Asaph and returns to
Strathclyde to reclaim the Bishopric of Glasgow.

575 - Accompanied by St. Columba, King Aedan
of Dalriada meets with King Aed mac Ainmure of the Northern Ui Neill and
Colman mac Comgellan, representing the people of Irish Dalriada, at the
Conference of Druim Ceatt (The Mullagh, Limavady). They agree to divide
taxation, military and naval service rights in Irish Dalriada; thus
forging an alliance to thwart the expansionist policies of King Baetan mac
Cairell of Ulster. The Scots break free from Irish overlordship.

c.575 - King Bruide ipe Mailcon of the Picts
achieves overlordship of the Southern Pictish sub-kingdoms. St. Kentigern
Garthwys, Bishop of Llanelwy, returns to Glasgow.

577 - King Baetan mac Cairell of Ulster
attacks the Isle of Man in order to drive out the ruling British.

578 - King Baetan mac Cairell of Ulster
completes his expulsion of the British from the Isle of Man. King Neithon
of Ynys Manaw either flees or is killed.

580 - King Aedan of Dalriada leads a naval
expedition to Orkney, possibly in retaliation for Pictish piratical raids
on his kingdom.

581 - Death of King Baetan mac Cairell of
Ulster.

583 - The Battle of the Isle of Man in which
King Aedan of Dalriada is successful in beating back the Ulstermen from
their occupation of the island. He is probably largely interested in
plunder however and does not occupy Man himself.

584 - Death of King Bruide ipe Mailcon of the
Picts. He is succeeded by Gartnait ipe Domelch.

c.584-597 - King Aedan of Dalriada wages war
on the Picts.

589 - Conversion of Prince Constantine of
Strathclyde to Christianity, probably by St. Kentigern.

590 - The Northern British Alliance
(Strathclyde, North Rheged, Bryneich and Elmet) lays siege to King Hussa
of Bernicia at Lindisfarne and almost exterminates the Northumbrians from
Northern Britain. King Urien of North Rheged is assassinated at the behest
of his jealous ally King Morcant Bulc of Bryneich. The Northumbrians
recover while internal squabbles tear the British Alliance apart.

590 - King Aedan of Dalriada probably tries
to re-impose his overlordship on his old Kingdom of Manau Gododdin. He is
victorious against the Picts at the Battle of Leithri (probably identical
with the Battle of the Miathi) fought around the upper reaches of the
River Forth.

592 - Death of St. Mo-Luag, Abbot of Lismore.

597 - Death of St. Columba, Abbot of Iona.
Death of Prince Eogan mac Gabhran of Dalriada.